package com.lu.servlet;

import com.lu.dao.impl.TopicDaoImpl;
import com.lu.entity.Topic;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

public class AddTopicServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
       doPost(req,resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("utf-8");
        resp.setCharacterEncoding("utf-8");

        resp.setContentType("text/html");
        PrintWriter out = resp.getWriter();

        String tname = req.getParameter("tname");
        Topic topic = new Topic(tname);
        int result = new TopicDaoImpl().insertOneTopic(topic);
        if(result>0){
            out.print("<script>alert('添加成功!')</script>");
            out.print("<script>location.href='topicList.jsp';</script>");
        }else{
            out.print("<script>alert('添加失败!')</script>");
            out.print("<script>history.back();</script>");
        }

        out.flush();
        out.close();
    }
}
